vtk-m2/vtkm/worklet/testing/UnitTestTriangulate.cxx
Robert Maynard 89fa2c0293 Remove multiple vtkm::cont::CellSet from vtkm::cont::DataSet
By removing the ability to have multiple CellSets in a DataSet
we can simplify the following things:

  - Cell Fields now don't require a CellSet name when being constructed
  - Filters don't need to manage what the active cellset is
2019-09-02 09:04:51 -04:00

85 lines
2.9 KiB
C++

//============================================================================
// Copyright (c) Kitware, Inc.
// All rights reserved.
// See LICENSE.txt for details.
//
// This software is distributed WITHOUT ANY WARRANTY; without even
// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
// PURPOSE. See the above copyright notice for more information.
//============================================================================
#include <vtkm/worklet/DispatcherMapField.h>
#include <vtkm/worklet/Triangulate.h>
#include <vtkm/cont/DataSet.h>
#include <vtkm/cont/DataSetBuilderExplicit.h>
#include <vtkm/cont/testing/MakeTestDataSet.h>
#include <vtkm/cont/testing/Testing.h>
using vtkm::cont::testing::MakeTestDataSet;
class TestingTriangulate
{
public:
void TestStructured() const
{
std::cout << "Testing TriangulateStructured:" << std::endl;
using CellSetType = vtkm::cont::CellSetStructured<2>;
using OutCellSetType = vtkm::cont::CellSetSingleType<>;
// Create the input uniform cell set
vtkm::cont::DataSet dataSet = MakeTestDataSet().Make2DUniformDataSet1();
CellSetType cellSet;
dataSet.GetCellSet().CopyTo(cellSet);
// Convert uniform quadrilaterals to triangles
vtkm::worklet::Triangulate triangulate;
OutCellSetType outCellSet = triangulate.Run(cellSet);
// Create the output dataset and assign the input coordinate system
vtkm::cont::DataSet outDataSet;
outDataSet.AddCoordinateSystem(dataSet.GetCoordinateSystem(0));
outDataSet.SetCellSet(outCellSet);
// Two triangles are created for every quad cell
VTKM_TEST_ASSERT(test_equal(outCellSet.GetNumberOfCells(), cellSet.GetNumberOfCells() * 2),
"Wrong result for Triangulate filter");
}
void TestExplicit() const
{
std::cout << "Testing TriangulateExplicit:" << std::endl;
using CellSetType = vtkm::cont::CellSetExplicit<>;
using OutCellSetType = vtkm::cont::CellSetSingleType<>;
// Create the input uniform cell set
vtkm::cont::DataSet dataSet = MakeTestDataSet().Make2DExplicitDataSet0();
CellSetType cellSet;
dataSet.GetCellSet().CopyTo(cellSet);
vtkm::cont::ArrayHandle<vtkm::IdComponent> outCellsPerCell;
// Convert explicit cells to triangles
vtkm::worklet::Triangulate triangulate;
OutCellSetType outCellSet = triangulate.Run(cellSet);
// Create the output dataset explicit cell set with same coordinate system
vtkm::cont::DataSet outDataSet;
outDataSet.AddCoordinateSystem(dataSet.GetCoordinateSystem(0));
outDataSet.SetCellSet(outCellSet);
VTKM_TEST_ASSERT(test_equal(outCellSet.GetNumberOfCells(), 14),
"Wrong result for Triangulate filter");
}
void operator()() const
{
TestStructured();
TestExplicit();
}
};
int UnitTestTriangulate(int argc, char* argv[])
{
return vtkm::cont::testing::Testing::Run(TestingTriangulate(), argc, argv);
}